Eaton Crouse-Hinds 1-1/4" Three-Piece Conduit Coupling, Rigid/IMC, Malleable Iron

Eaton Crouse-Hinds 1-1/4" Three-Piece Conduit Coupling, Rigid/IMC, Malleable Iron

Professional-Grade Concrete Tight Coupling for Heavy-Duty Electrical Installations

The Eaton Crouse-Hinds 1-1/4" Three-Piece Conduit Coupling is a premium malleable iron fitting engineered for demanding rigid and IMC conduit connections. This concrete tight coupling delivers superior strength and reliability for commercial and industrial electrical installations where maximum durability is essential.

Key Features & Benefits

Superior Material Construction

• Malleable Iron Construction - Stronger than steel with exceptional impact resistance and dimensional stability
• Concrete Tight Design - Prevents concrete infiltration during pour operations, maintaining conduit integrity
• Corrosion Resistant Finish - Long-lasting protection against environmental elements and chemical exposure
• Precision Threading - Ensures secure, leak-proof connections with consistent torque requirements

Professional Installation Advantages

• Three-Piece Design - Allows for easy alignment and adjustment during installation without conduit rotation
• Universal Compatibility - Works with both rigid steel and IMC conduit systems for maximum versatility
• Field Adjustable - Accommodates slight misalignments and expansion/contraction requirements
• Contractor Preferred - Reduces installation time while ensuring code-compliant connections

Code Compliance & Safety

• NEC/CEC Compliant - Meets all National and Canadian Electrical Code requirements
• Grounding Continuity - Maintains electrical grounding path through the conduit system
• Professional Grade Rating - Engineered for ordinary/non-hazardous locations with demanding requirements

Technical Specifications

This 1-1/4" trade size three-piece coupling features malleable iron construction with concrete tight sealing capabilities. The fitting measures 2.38" in height and width with a 2.13" depth, weighing 0.91 pounds for substantial durability. Compatible with both rigid steel and IMC conduit systems, it maintains NEC/CEC compliance standards for ordinary/non-hazardous location installations. The three-piece design allows for field adjustment while providing secure mechanical and electrical connections.

Installation Process

1. Verify conduit ends are cut square and deburred for proper seating
2. Thread the coupling body onto the first conduit section hand-tight
3. Insert the second conduit section and align with the coupling threads
4. Thread the coupling ring onto the second conduit section
5. Tighten both connections using appropriate wrenches to manufacturer specifications
6. Verify grounding continuity and mechanical integrity of the completed joint

Applications

Perfect for:

• Concrete Pour Applications - Underground electrical systems, foundation work, and embedded conduit runs
• Commercial Buildings - Office complexes, retail centers, hospitals, and educational facilities
• Industrial Facilities - Manufacturing plants, processing facilities, and heavy equipment installations
• Infrastructure Projects - Municipal buildings, transportation facilities, and utility installations
• Equipment Connections - Motor control centers, switchgear, and electrical panel connections
• Conduit Extensions - Joining conduit runs where field modifications are required
• Expansion Joints - Accommodating thermal expansion in long conduit runs
• Maintenance Access - Creating removable sections for future wire pulling or system modifications

Three-Piece Coupling System Benefits

Three-piece couplings offer significant advantages over standard two-piece designs by eliminating the need to rotate conduit sections during installation. This is particularly valuable in concrete applications where conduit position is critical, or when connecting to equipment that cannot be rotated. The design also allows for easier disassembly for maintenance while maintaining the same mechanical strength and electrical continuity as welded connections.

Why Choose Malleable Iron Construction?

Malleable iron provides superior strength compared to standard steel fittings, with exceptional resistance to impact and vibration damage. This material choice ensures decades of reliable service in demanding environments while maintaining dimensional stability under temperature variations. The concrete tight design prevents infiltration during pour operations, eliminating costly rework and ensuring long-term system integrity. Trusted by electrical professionals for over 100 years, Eaton Crouse-Hinds malleable iron fittings represent the gold standard for heavy-duty electrical installations.